
Interpretation :
The reason for group eight elements to be termed as inert or noble gas elements needs to be explained.
Concept Introduction :
The periodic table is divided into two columns one is a vertical column known as groups and another one is horizontally termed as a period. The elements present in the 18th group of the periodic table are known as the noble gases or inert gases due to their atomic configuration and

Answer to Problem 42A
The inert or noble gas term is just for the stability of the elements, and the stability is due to the fully filled outermost shells of the elements.
Explanation of Solution
The elements are placed into the eighteen group (or group 8A) is also known as the inert gases, the name for them is due to the inert chemical behavior. The inert gases are stable and non-reactive which makes them very difficult to spot when they are mixed with other gases in the air.
The stability of the elements and non-reactive inert nature is the reason for the group eighteen elements to be termed as noble or inert gases.
Chapter 3 Solutions
World of Chemistry, 3rd edition
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- Write the systematic name of each organic molecule: structure HO-C-CH2-CH3 O -OH CH3-CH2-CH2-CH2-CH2-C-OH CH3 CH3-CH-CH2-C-OH Explanation Check S namearrow_forwardtheres 2 productsarrow_forwardDraw the major product of this solvolysis reaction. Ignore any inorganic byproducts. + CH3CH2OH Drawing Q Atoms, Bonds and Rings OCH2CH3 || OEt Charges OH 00-> | Undo Reset | Br Remove Done Drag To Pan +arrow_forward
- Draw the major product of this SN1 reaction. Ignore any inorganic byproducts. CH3CO2Na CH3CO2H Drawing + Br Q Atoms, Bonds and Rings OAC Charges OH ОАс Na ဂ Br Undo Reset Remove Done Drag To Pan +arrow_forwardOrganic Functional Groups entifying positions labeled with Greek letters in acids and derivatives 1/5 ssible, replace an H atom on the a carbon of the molecule in the drawing area with a ce an H atom on the ẞ carbon with a hydroxyl group substituent. ne of the substituents can't be added for any reason, just don't add it. If neither substi er the drawing area. O H OH Oneither substituent can be added. Check D 1 Accessibility ado na witharrow_forwardDifferentiate between electrophilic and nucleophilic groups. Give examples.arrow_forward
- An aldehyde/ketone plus an alcohol gives a hemiacetal, and an excess of alcohol gives an acetal. The reaction is an equilibrium; in aldehydes, it's shifted to the right and in ketones, to the left. Explain.arrow_forwardDraw a Haworth projection or a common cyclic form of this monosaccharide: H- -OH H- OH H- -OH CH₂OHarrow_forwardAnswer the question in the first photoarrow_forward
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